Um... light painting is AWESOME. I love the inner warmth it adds to this scene, with the various cave entrances seemingly lit from within. How long was the total exposure?

I also liked the phrase, "...with permission to photograph after park hours." Made me laugh when I read it. I'm sure the park rangers appreciated it too.

Maybe a silhouette of a cave man, staring into the night? ;-) j/k I think this one is pretty much great.

Amazing picture! Colour balance and saturation are awesome. Love the soft hues and contrast between the blue and the orange light. Thank you for posting!

Beautiful and unique! When you want something different in landscapes it doesn't get much better than this! Nice complimentary colors and I want to congratulate you on the post-processing work. A little information on your light painting technique would be appreciated. :P Thanks Ben..

The mountain range line is a little out of focus with the rest of the background but it doesn't take away too much from this piece. After all, the focus is meant to be on the caves which seems to be nice and sharp.

Thanks for the comments everyone!
Settings: 2min 30sec exposure, f/6.3, ISO 100.
I had the idea to do this photo the moment I arrived in the park.

@Daddy_Gemini
I wore all black and kept moving so as not to show up, was pretty much right up next to each rock opening (very steep), and used a normal flashlight with a cone taped to it to make a spotlight.
I've done light painting like this before, there's little tricks you remember to do or not do to get a clean and successful result, I won't go into all of it here, but number 1 is making sure the flashlight never even slightly points toward the camera or you'll get light streaks in the air where you were painting and it ruins all the effort put into that photo!